diff --git a/appDefinition.json b/appDefinition.json
index 0583009..3db4879 100644
--- a/appDefinition.json
+++ b/appDefinition.json
@@ -10,10 +10,10 @@
   } ],
   "inputParameters" : [ {
     "type" : "DOUBLE",
-    "name" : "BIN1"
+    "name" : "Please select BIN 1"
   }, {
     "type" : "DOUBLE",
-    "name" : "BIN2"
+    "name" : "Please select BIN2"
   } ],
   "outputs" : [ {
     "dataType" : "eff_drop_out_aux_image",